A setup tool for connecting a LINE messaging channel to the agent using credentials from the LINE Developers Console.

Use it to save or inspect the channel token and secret, check the webhook port, and understand the current access policy.

It shows whether the required credentials and access settings are present, reducing setup mistakes.

configure — Skill for Claude Code and Codex by breakingmind: A setup tool for connecting a LINE messaging channel…

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods

npx agentmods add skills/breakingmind/claude-external-plugins-line/configure

Any agent

npx skills add breakingmind/claude-external-plugins-line --skill configure

Clone the repo

git clone --depth 1 https://github.com/breakingmind/claude-external-plugins-line

Made for: Claude Code, Codex.

Or install line, the plugin that ships this one along with the rest of its 2 skills.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/skills/breakingmind/claude-external-plugins-line/configure.svg)](https://agentmods.dev/skills/breakingmind/claude-external-plugins-line/configure)

Your own site

<a href="https://agentmods.dev/skills/breakingmind/claude-external-plugins-line/configure"><img src="https://agentmods.dev/badge/skills/breakingmind/claude-external-plugins-line/configure.svg" alt="Measured on agentmods" height="20"></a>

Per session 47 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 873 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. Scan, not verified.

Origin original No closer match found in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5	$0.00047	$0.00873
Opus 5	$0.00023	$0.00436
Sonnet 5	$0.00009	$0.00175
Haiku 4.5	$0.00005	$0.00087

Measured 4d ago against content hash 4dfd50bc62d1, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

configure scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 4d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/configure/SKILL.md · 92 lines

How it starts

The opening of the file, as written. The whole thing — 92 lines — stays where its author put it; the contents beside it link to each section on GitHub.

/line:configure — LINE Channel Setup

Writes LINE credentials to ~/.claude/channels/line/.env and orients the user on access policy. The server reads both files at boot.

Arguments passed: $ARGUMENTS

Dispatch on arguments

No args — status and guidance

Read both state files and give the user a complete picture:

Credentials — check ~/.claude/channels/line/.env for LINE_CHANNEL_ACCESS_TOKEN and LINE_CHANNEL_SECRET. Show set/not-set; if set, show first 10 chars masked (e.g. ABCdef1234...).
Webhook port — show LINE_WEBHOOK_PORT (default: 3000).
Access — read ~/.claude/channels/line/access.json (missing file = defaults: dmPolicy: "pairing", empty allowlist). Show:
- DM policy and what it means in one line
- Allowed users: count and list IDs
- Pending pairings: count, with codes and user IDs if any
What next — end with a concrete next step based on state:
- No credentials → "Run /line:configure token <token> then /line:configure secret <secret> with credentials from LINE Developers Console."
- Credentials set, nobody paired → "Message your LINE bot. It replies with a code; approve with /line:access pair <code>."
- Credentials set, someone paired → "Ready. Message your LINE bot to reach the assistant."
- Always remind: LINE requires a public HTTPS webhook — use ngrok or Cloudflare Tunnel to expose port 3000 (or LINE_WEBHOOK_PORT).

Push toward lockdown — always. Once IDs are captured via pairing, switch to allowlist policy. Offer to run /line:access policy allowlist.

`token <value>` — save Channel Access Token

Treat the argument as the token (trim whitespace).
mkdir -p ~/.claude/channels/line
Read existing .env if present; update/add the LINE_CHANNEL_ACCESS_TOKEN= line, preserve other keys. Write back, no quotes around the value.
Confirm, then show the no-args status.

`secret <value>` — save Channel Secret

Read the full file on GitHub · 92 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

4d ago First seen · 92 lines · 47 tokens per session scan A 4dfd50bc62d1

Subscribe to this mod's changes

configure is a skill published in the GitHub repository breakingmind/claude-external-plugins-line (9 stars, last pushed 4mo ago), licensed MIT. It adds 47 tokens to every session and 873 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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